<template>
    <section>
        <p>20 vuetify 遮罩层 overlay</p>
    <div class="d-flex justify-center">
      <v-btn>
        block
  
        <v-overlay
          activator="parent"
          location-strategy="connected"
          scroll-strategy="block"
        >
          <v-card class="pa-2">
            Hello!
          </v-card>
        </v-overlay>
      </v-btn>
    </div>
</section>
  </template>